Undisputed II: Last Man Standing

In "Undisputed II: Last Man Standing" (2006), an American ex-con turned MMA fighter named George "Iceman" Chambers is incarcerated in a Russian prison where he must fight against formidable opponents to secure his freedom. The main conflict revolves around his intense battles inside the prison ring and his struggles to outmaneuver a ruthless Russian champion. The film explores themes of redemption, honor, and the brutal world of underground fighting.